207978876

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{337}}^1$

素因数の和:464

約数の個数: 144

約数和(自身を含む): 629923840

約数和(自身を除く): 421944964

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 31, 36, 42, 62, 63, 79, 84, 93, 124, 126, 158, 186, 217, 237, 252, 279, 316, 337, 372, 434, 474, 553, 558, 651, 674, 711, 868, 948, 1011, 1106, 1116, 1302, 1348, 1422, 1659, 1953, 2022, 2212, 2359, 2449, 2604, 2844, 3033, 3318, 3906, 4044, 4718, 4898, 4977, 6066, 6636, 7077, 7347, 7812, 9436, 9796, 9954, 10447, 12132, 14154, 14694, 17143, 19908, 20894, 21231, 22041, 26623, 28308, 29388, 31341, 34286, 41788, 42462, 44082, 51429, 53246, 62682, 68572, 73129, 79869, 84924, 88164, 94023, 102858, 106492, 125364, 146258, 154287, 159738, 186361, 188046, 205716, 219387, 239607, 292516, 308574, 319476, 372722, 376092, 438774, 479214, 559083, 617148, 658161, 745444, 825313, 877548, 958428, 1118166, 1316322, 1650626, 1677249, 2236332, 2475939, 2632644, 3301252, 3354498, 4951878, 5777191, 6708996, 7427817, 9903756, 11554382, 14855634, 17331573, 23108764, 29711268, 34663146, 51994719, 69326292, 103989438, 207978876]

約数ペア:

[(1, 207978876), (2, 103989438), (3, 69326292), (4, 51994719), (6, 34663146), (7, 29711268), (9, 23108764), (12, 17331573), (14, 14855634), (18, 11554382), (21, 9903756), (28, 7427817), (31, 6708996), (36, 5777191), (42, 4951878), (62, 3354498), (63, 3301252), (79, 2632644), (84, 2475939), (93, 2236332), (124, 1677249), (126, 1650626), (158, 1316322), (186, 1118166), (217, 958428), (237, 877548), (252, 825313), (279, 745444), (316, 658161), (337, 617148), (372, 559083), (434, 479214), (474, 438774), (553, 376092), (558, 372722), (651, 319476), (674, 308574), (711, 292516), (868, 239607), (948, 219387), (1011, 205716), (1106, 188046), (1116, 186361), (1302, 159738), (1348, 154287), (1422, 146258), (1659, 125364), (1953, 106492), (2022, 102858), (2212, 94023), (2359, 88164), (2449, 84924), (2604, 79869), (2844, 73129), (3033, 68572), (3318, 62682), (3906, 53246), (4044, 51429), (4718, 44082), (4898, 42462), (4977, 41788), (6066, 34286), (6636, 31341), (7077, 29388), (7347, 28308), (7812, 26623), (9436, 22041), (9796, 21231), (9954, 20894), (10447, 19908), (12132, 17143), (14154, 14694)]